I've searched high and low online and want to add it to my custom foods, but what I've found so far has very limited information.
It has of course to be as detailed as the information in here, all vitamins, minerals, fat, carbs, protein etc.

depending on the brand, serving size, and flavor, the nutrition facts vary. The site above is for Chobani. Just click underneath the photo for "nutrition facts" and then enter it as a custom food on FitDay.